abnormal obstetrical screening
abnormal pregnancy
abnormal umbilical artery doppler
advanced maternal age
antepartum depression
cardiac disease in pregnancy
cervical insufficiency
chorioamnionitis
congenital diaphragmatic hernia (cdh)
fetal infection
hypertensive disorders of pregnancy
maternal cardiac disease
maternal hematologic disorders
maternal respiratory disease
maternal thrombophilia
obstetrical ultrasound at 14 weeks gestation or less
oligohydramnios
pelvic us obstetric
personal history of stillbirth
polyhydramnios
preeclampsia
preterm labor
progressive familial intrahepatic cholestasis (pfic)
short cervix in pregnancy
twin to twin transfusion syndrome